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LTE-A Module Series
EG12 Hardware Design
EG12_Hardware_Design 58 / 100
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Module
STATUS
Figure 28: Reference Circuits of STATUS
3.17. Behavior of the RI
AT+QCFG="risignaltype","physical" command can be executed to configure RI behavior.
No matter on which port a URC is presented, the URC will trigger the behavior of RI pin.
The URC can be output from UART port, USB AT port and USB modem port by executing
AT+QURCCFG command. The default port is USB AT port.
In addition, RI behavior can be configured flexibly. The default behavior of the RI is shown as below.
Table 24: Behavior of the RI
State
Response
Idle
RI keeps at high level
URC
RI outputs 120ms low pulse when a new URC returns
The RI behavior can be changed by executing AT+QCFG="urc/ri/ring" command. Please refer to
document [2] for more details.
NOTE